Odd & Even Numbers
Sort Odd and Even (Set A)
Sort each number into the correct column.
Sort Odd and Even (Set B)
Sort each number into the correct column.
Sort Odd and Even (Set C – Bigger Numbers)
Sort each number. Look at the ones digit!
Odd or Even? (Set A)
Circle whether each number is odd or even.
17
44
100
333
1,256
Odd or Even? (Set B)
Circle whether each number is odd or even.
58
71
206
999
4,002
Which Digit Tells You?
Circle the correct answer.
To tell if a number is odd or even, look at the:
Even numbers always end in:
Odd numbers always end in:
Even Number Sequences
Fill in the missing even numbers.
Odd Number Sequences
Fill in the missing odd numbers.
Match Numbers to Odd/Even
Draw a line from each number to ODD or EVEN.
Even Groups (Stars)
Count the stars. Is the total odd or even? Write the number.
Odd Groups (Hearts)
Count the hearts. Is the total odd or even? Write the number.
True or False? (Odd/Even Basics)
Circle TRUE or FALSE.
All even numbers can be divided by 2 with no remainder
0 is an odd number
The number 1,000 is even
Every other number is odd
True or False? (Odd/Even – Set B)
Circle TRUE or FALSE.
The sum of two even numbers is always even
The sum of two odd numbers is always odd
An even number times any number is even
The last digit of an even number is always 0, 2, 4, 6 or 8
Odd or Even? (Set C – 3-Digit Numbers)
Sort each number.
Odd or Even? (Set D – 4-Digit Numbers)
Sort each number.
Odd or Even? (Set C – Quick Fire)
Circle ODD or EVEN.
345
1,298
4,003
10,000
Odd or Even? (Set D – Quick Fire)
Circle ODD or EVEN.
7,777
6,402
15,001
20,220
Match Numbers to Odd/Even Type
Draw a line from each number to whether it is odd or even.
Match Sum Results
Draw a line to match each sum with whether the answer is odd or even.
Even Number Sequences
Continue the pattern of even numbers.
Odd Number Sequences
Continue the pattern of odd numbers.
Odd or Even Sums?
Find the missing number. Is the total odd or even?
Odd or Even Sums? (Set B)
Find the missing number.
Count and Decide: Odd or Even? (Set C)
Count the objects. Is the total odd or even?
Count and Decide: Odd or Even? (Set D)
Count the objects.
Odd/Even Exploration
Answer each question about odd and even numbers.
Write the first 5 even numbers after 100:
Write the first 5 odd numbers after 200:
Is the number 4,567 odd or even? How do you know?
Write an even number between 350 and 360:
Odd/Even Exploration (Set B)
Answer each question.
What is the largest 3-digit even number?
What is the smallest 4-digit odd number?
Is zero odd or even? Explain why.
Name 3 even numbers between 995 and 1,005:
What Happens When You Add/Subtract?
Circle the correct answer.
Even − Even = ?
Odd − Odd = ?
Even − Odd = ?
Odd − Even = ?
Tally the Odd and Even Numbers
From this list: 3, 8, 15, 22, 7, 10, 19, 24, 31, 6. Tally the odd and even numbers.
| Item | Tally | Total |
|---|---|---|
Odd numbers | ||
Even numbers |
Odd + Even = ? (Addition Rules)
Is the result odd or even? Circle the correct answer.
Even + Even = ?
Odd + Odd = ?
Even + Odd = ?
Odd + Even = ?
Odd × Even = ? (Multiplication Rules)
Is the product odd or even? Circle the correct answer.
Even × Even = ?
Odd × Odd = ?
Even × Odd = ?
Odd × Even = ?
Subtraction: Odd or Even? (Set A)
Without calculating, decide whether each result is odd or even.
Even − Even = ?
Odd − Odd = ?
Even − Odd = ?
Odd − Even = ?
Predict: Odd or Even? (Set A)
Without calculating, predict if the result is odd or even.
24 + 13
46 + 32
7 × 8
15 × 3
100 − 37
Predict: Odd or Even? (Set B)
Without calculating, predict if the result is odd or even.
55 + 45
33 × 2
81 − 40
12 × 11
99 + 1
Predict: Odd or Even? (Set C)
Without calculating, predict if the result is odd or even.
6 + 8 + 10
3 + 5 + 7
4 × 5 × 2
3 × 7 × 5
Sort Results: Odd or Even?
Without calculating, sort each expression.
Odd + Odd = Even Bonds
Both parts are odd. Find the missing odd number.
Even + Even = Even Bonds
Both parts are even. Find the missing even number.
Match Expression to Result Type
Draw a line from each expression to whether the result is odd or even.
Complete the Rule
Fill in the rule for each pattern.
Odd + Odd = _____ (odd or even?)
Even × Odd = _____ (odd or even?)
Odd × Odd = _____ (odd or even?)
Even − Odd = _____ (odd or even?)
Explain the Pattern (Set A)
Answer each question using what you know about odd and even numbers.
Why is the sum of two even numbers always even? Give an example.
Is the sum of three odd numbers odd or even? Explain why.
Explain the Pattern (Set B)
Answer each question.
Write three consecutive even numbers starting from 48.
Write three consecutive odd numbers starting from 77.
Is the product of an even number and any other number always even? Explain.
Odd/Even Puzzles
Solve these puzzles.
I am an even number between 40 and 50. My digits add up to 10. What am I?
I am an odd number. I am a multiple of 7. I am between 20 and 30. What am I?
Can the sum of 5 odd numbers ever be even? Explain.
Challenge: Always, Sometimes, Never
Write ALWAYS, SOMETIMES or NEVER for each statement. Explain your answer.
The sum of two even numbers is even.
The product of two odd numbers is even.
An odd number minus an even number is odd.
The sum of an odd and an even number is even.
Home Activity: Odd & Even Investigations
Investigate odd and even numbers at home!
- 1Write numbers 1–20. Colour even numbers blue and odd numbers red. What pattern do you notice?
- 2Add pairs of house numbers on your street. Are the results odd or even?
- 3Roll two dice. Add the numbers — is the total odd or even? Do this 20 times and record your results.
- 4Can you find a number that is both odd and even? Why or why not?
Odd or Even? (Large Numbers)
Circle whether each number is odd or even.
1,248
3,751
10,004
7,777
Odd and Even Operation Rules
Complete each rule with 'Odd' or 'Even', then give an example.
Odd + Odd = ___. Example: ___ + ___ = ___
Even + Even = ___. Example: ___ + ___ = ___
Odd + Even = ___. Example: ___ + ___ = ___
Odd × Even = ___. Example: ___ × ___ = ___
Sort Products: Odd or Even?
Work out each product and sort it.
Predict: Odd or Even Sum?
Without calculating, predict if the sum is odd or even.
237 + 419 = ?
864 + 326 = ?
1,005 + 2,007 = ?
4,568 + 1,234 = ?
Investigate: Odd × Odd
Explore this multiplication pattern.
Work out: 3 × 5 = ___, 3 × 7 = ___, 5 × 7 = ___
What do you notice? Write a rule about odd × odd.
Test with 4-digit numbers: is 3 × 1,001 odd or even? ___
Sort Operations by Result Type
Sort each number operation into the correct column.
Odd and Even Sequences
Fill in the missing numbers.
Odd and Even in Multiplication Tables
Investigate which tables give odd results.
Write the first 10 multiples of 4. Are they all even?
Write the first 10 multiples of 7. Are they all odd?
Which times tables always give even products? Explain.
Odd and Even Numbers (1–20) Tally
Tally how many odd and even numbers are in each group.
| Item | Tally | Total |
|---|---|---|
Odd numbers 1–10 | ||
Even numbers 1–10 | ||
Odd numbers 11–20 | ||
Even numbers 11–20 |
Odd and Even: Subtraction Rules
Investigate subtraction patterns.
Even − Even = ___. Example: 14 − 6 = ___
Odd − Odd = ___. Example: 15 − 7 = ___
Even − Odd = ___. Example: 20 − 9 = ___
Odd − Even = ___. Example: 17 − 4 = ___
True or False? Odd/Even Rules
Circle TRUE or FALSE.
The sum of any two even numbers is always even.
The sum of any two odd numbers is always odd.
Any even number multiplied by 5 gives an even result.
3,456 is an odd number.
Divisibility and Even Numbers
Explore divisibility by 2.
All even numbers are divisible by ___.
Which of these are divisible by 2: 45, 68, 102, 375, 940? List them.
Write a 4-digit even number that is also divisible by 4: ___
Odd and Even in Real Life
Answer each question.
If you share 27 cookies equally between 2 people, can you do it without breaking a cookie? Why?
A chair company makes chairs in pairs. Can they make exactly 153 chairs? Explain.
Give two real-life examples where it matters whether a number is odd or even.
Investigate: Digit Sums and Odd/Even
Investigate this pattern.
Write 5 two-digit numbers whose digits add to an odd number. Are the numbers themselves odd or even?
Write 5 two-digit numbers whose digits add to an even number. Are the numbers themselves odd or even?
What pattern do you notice? Write your conclusion.
Challenge: Consecutive Number Sums
Explore sums of consecutive numbers.
Add 3 consecutive numbers: 4 + 5 + 6 = ___. Is the sum odd or even?
Try again: 7 + 8 + 9 = ___. Odd or even?
Try 5 consecutive numbers: 2 + 3 + 4 + 5 + 6 = ___. Odd or even?
Write a rule: The sum of 3 consecutive whole numbers is always ___.
Odd vs Even: A Comparison
Each icon = 2 numbers. Use the pictograph to answer the questions.
| Odd numbers 1–20 | |
| Even numbers 1–20 | |
| Odd numbers 21–40 | |
| Even numbers 21–40 |
How many odd numbers are between 1 and 40?
How many even numbers are between 1 and 40?
What fraction of all numbers 1–40 are even?
Odd and Even Number Puzzles
Solve each puzzle.
I am an even 2-digit number. My digits add to 10. I am less than 50. What am I?
The product of two consecutive even numbers is 48. What are the two numbers?
I am an odd 3-digit number between 300 and 400. My tens and units digits are equal. What could I be?
Summary: Properties of Odd and Even Numbers
Show what you know.
List three properties of even numbers.
List three properties of odd numbers.
Write one thing that surprised you about odd and even numbers.